How to Associate a Username with a Security Identifier (SID)

Article translations Article translations
Article ID: 154599 - View products that this article applies to.
This article was previously published under Q154599
Expand all | Collapse all


The information in this article describes how to associate a username with a security identifier (SID).


Sometimes, you need to know what the security identifier (SID) is for a specific user on the system. To see what the SID is for a specific user, perform the steps below.

WARNING: Using Registry Editor incorrectly can cause serious, system-wide problems that may require you to reinstall Windows NT to correct them. Microsoft cannot guarantee that any problems resulting from the use of Registry Editor can be solved. Use this tool at your own risk.
  1. Open Registry Editor and navigate to:

    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion \ProfileList
  2. Under the ProfileList key, you will see the SIDs. By selecting each one individually, you can look at the value entry and see what user name is associated with that particular SID.


Article ID: 154599 - Last Review: February 27, 2007 - Revision: 2.2
  • Microsoft Windows 2000 Server
  • Microsoft Windows 2000 Advanced Server
  • Microsoft Windows 2000 Professional Edition
  • Microsoft Windows NT Workstation 3.5
  • Microsoft Windows NT Workstation 3.51
  • Microsoft Windows NT Workstation 4.0 Developer Edition
  • Microsoft Windows NT Server 3.5
  • Microsoft Windows NT Server 3.51
  • Microsoft Windows NT Server 4.0 Standard Edition
kbenv kbhowto KB154599

Give Feedback


Contact us for more help

Contact us for more help
Connect with Answer Desk for expert help.
Get more support from